It's not a Concord III, it's a Concord H-III (Concord with humbuckers). Probably one of the later ones, it has the precision tremelo tailpiece - the earliest ones had a standard strat style trem. With a very slight change (Losing the plastic cover around the pickup switch) this model would become the Spectrum III in 84. The finish (Blue Burst) is the same as on my Spectrum III, the burst finish isn't just on the body, it's on the headstock and the back of the neck too.